tolong bantuin saya kak pake caranya please bantuinbesok dikumpulin

Mapel : Matematika
Kelas : VIII SMP
Bab : Bangun ruang

Pembahasan :
1.

Volume Prisma = La x t
Volume Prisma = (1/2 . 12 . 5) . 10
Volume Prisma = 300 cm³

Jawaban : B

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2.

Volume Prisma = La x t
Volume Prisma = (12 x 16/2) x 15
Volume Prisma = 96 x 15
Volume Prisma = 1440 cm³

Jawaban : A

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3.

La = 1/2at
La = 1/2(12)[√(10² - (12/2)²)
La = 6(8)
La = 48 cm²

Ka = 10 + 10 + 12
Ka = 32 cm

Lp Prisma = (2 x La) + (Ka x t)
Lp Prisma = (2 x 48) + (32 x 20)
Lp Prisma = 96 + 640
Lp Prisma = 736 cm²

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4.

Panjang diagonal = 12
s√2 = 12
Sisi = 12/√2
Sisi = 6√2 cm

Volume Prisma = La x t
Volume Prisma = (6√2)² x 20
Volume Prisma = 72 x 20
Volume Prisma = 1440 cm³

Jawaban : A